Abstract: Chinese corn varieties are mainly hybrids.Emasculation is an important part of hybrid seed corn production.At present，it mainly relies on manual work and imported emasculation equipment.With opening up of seed industry market and promotion of rural land circulation，in the face of fierce competition from foreign seed companies，reduction of rural labor force and increase of production cost，shortage of emasculation machinery has been seriously restricted development of corn seed industry.Mechanized emasculation has characteristics of strong mobility，high production efficiency and low operating cost，which is inevitable development trend of seed maize emasculation.Therefore，technology and equipment of emasculation for corn production at home and abroad were summarized，existing problems were pointed out，and solutions was proposed accordingly.